Related Clues:

• A model of vegetable growth
• Driver of good-looking model
• Plant forming most of my lawn!
• Plant growing on many lawns
• Plant growing in dense mats
• Type of plant growing in damp places
• (Scarlet) plant of the primrose family
• Small plants growing as thick mat
• Scarlet flower
• Plant(s) not wanted on lawns
• Most of my lawn!
• Small flowerless green plant without proper roots
• Nature's pillow?
• Growth on a rock
• What rolling stones don't gather